Technical features Brand : RUDY PROJECT Construction : All our helmets use advanced co-moulded EPS technology for enhanced safety, quality, and lightweight performance. Equipped with a dual-density EPS core using an innovative internal structure designed to improve airflow. Discipline : Mountain biking Product family : Helmets Certifications : CE/EN 1078. CPSC 12.03 Number of ventilation channels : 16 Weight (manufacturer data) : 400 g Closure system : Fastex Closure: the 'Fastex Closure' technology of Rudy Project helmets features a classic quick-release closure system designed for ease and efficiency. This push-button closure system allows for easy attachment and detachment. Occipital retention system : RSR 12 S The 360° Comfort Fit technology is designed to provide unmatched fit and stability. This advanced feature refers to the retention system ring that surrounds the entire circumference of the head, ensuring optimal comfort. Protection system : RP ROTATIONAL IMPACT TEST